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Power transfer apparatus

  • US 4,131,827 A
  • Filed: 08/04/1977
  • Issued: 12/26/1978
  • Est. Priority Date: 08/04/1977
  • Status: Expired due to Term
First Claim
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1. The combination of:

  • a source of DC power which may vary;

    connections for a source of AC power;

    a DC motor having an armature and a field winding;

    power transfer means coupling said source to said motor for supplying current to the armature of said motor and for also supplying a voltage across the field winding of said motor, said power transfer means including means for adjusting the value of voltage;

    an AC motor-generator connected to said connections for said source of AC power for receiving operating power therefrom, said motor-generator being mechanically coupled to said DC motor and being driven thereby; and

    means responsive to a parameter indicative of the power supplied to said DC motor for controlling said means for adjusting in a sense to maximize said parameter.

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